Added --pretty=unsorted support

[kracekumar]

Pull request for issue #128. I wrote a dummy testcase that passes. Looking for feedback.

[kracekumar]

Python 3 test case failed https://travis-ci.org/kracekumar/httpie/jobs/9561524

[kracekumar]

Added a new option ordered. If this is ok, I will update the docs accordingly.

[jkbrzt]

Thanks, @kracekumar!

Let me just think about the UI for a bit. Maybe it would be better to change --pretty option so that it's similar to --print where you can specify any combination of the available choices.

[jkbrzt]

And as for the failed tests on Python3, I think it's related to #140 which is a Requests issue.

[kracekumar]

@jkbr sure. Will be waiting for the inputs.

[ralphschindler]

Is there a status update on this? It is a feature I would like as well.

[lieut-data]

👍

[lapo-luchini]

I'd like to use this too.
What is missing for landing?
(how can I help?)

[jkbrzt]

@lapo-luchini I'm interested in and working on a more generic method of configuring the formatters. This is too much of an ad-hoc solution.

[ralphschindler]

do you have a feature branch for the more generic solution?